mdadm/0057-imsm-return-correct-uuid-for-volume-in-detail.patch

From b771faef931c798a4553db0a8c1366aff90079c6 Mon Sep 17 00:00:00 2001
From: Blazej Kucman <blazej.kucman@intel.com>
Date: Fri, 29 Nov 2019 15:21:08 +0100
Subject: [PATCH] imsm: return correct uuid for volume in detail
Git-commit: b771faef931c798a4553db0a8c1366aff90079c6
Patch-mainline: mdadm-4.1+
References: jsc#SLE-10078, jsc#SLE-9348

Fixes the side effect of the patch b6180160f ("imsm: save current_vol number")
- wrong UUID is printed in detail for each volume.
New parameter "subarray" is added to determine what info should be extracted
from metadata (subarray or container).
The parameter affects only IMSM metadata.

Signed-off-by: Blazej Kucman <blazej.kucman@intel.com>
Signed-off-by: Jes Sorensen <jsorensen@fb.com>
Signed-off-by: Coly Li <colyli@suse.de>

---
 Detail.c      |  4 ++--
 mdadm.h       |  5 +++--
 super-ddf.c   |  5 +++--
 super-intel.c | 20 ++++++++++++++++++--
 super0.c      |  4 ++--
 super1.c      |  4 ++--
 6 files changed, 30 insertions(+), 12 deletions(-)

diff --git a/Detail.c b/Detail.c
index 3e61e37..24fa462 100644
--- a/Detail.c
+++ b/Detail.c
@@ -623,7 +623,7 @@ This is pretty boring
 		free_mdstat(ms);
 
 		if (st && st->sb)
-			st->ss->detail_super(st, c->homehost);
+			st->ss->detail_super(st, c->homehost, subarray);
 
 		if (array.raid_disks == 0 && sra &&
 		    sra->array.major_version == -1 &&
@@ -767,7 +767,7 @@ skip_devices_state:
 	if (spares && c->brief && array.raid_disks)
 		printf(" spares=%d", spares);
 	if (c->brief && st && st->sb)
-		st->ss->brief_detail_super(st);
+		st->ss->brief_detail_super(st, subarray);
 	if (st)
 		st->ss->free_super(st);
 
diff --git a/mdadm.h b/mdadm.h
index c88ceab..91f1338 100644
--- a/mdadm.h
+++ b/mdadm.h
@@ -847,8 +847,9 @@ extern struct superswitch {
 	/* Used to report details of an active array.
 	 * ->load_super was possibly given a 'component' string.
 	 */
-	void (*detail_super)(struct supertype *st, char *homehost);
-	void (*brief_detail_super)(struct supertype *st);
+	void (*detail_super)(struct supertype *st, char *homehost,
+			     char *subarray);
+	void (*brief_detail_super)(struct supertype *st, char *subarray);
 	void (*export_detail_super)(struct supertype *st);
 
 	/* Optional: platform hardware / firmware details */
diff --git a/super-ddf.c b/super-ddf.c
index c095e8a..7802063 100644
--- a/super-ddf.c
+++ b/super-ddf.c
@@ -1730,7 +1730,8 @@ err:
 	return 1;
 }
 
-static void detail_super_ddf(struct supertype *st, char *homehost)
+static void detail_super_ddf(struct supertype *st, char *homehost,
+			     char *subarray)
 {
 	struct ddf_super *sb = st->sb;
 	int cnt = be16_to_cpu(sb->virt->populated_vdes);
@@ -1787,7 +1788,7 @@ static void uuid_of_ddf_subarray(const struct ddf_super *ddf,
 	memcpy(uuid, sha, 4*4);
 }
 
-static void brief_detail_super_ddf(struct supertype *st)
+static void brief_detail_super_ddf(struct supertype *st, char *subarray)
 {
 	struct mdinfo info;
 	char nbuf[64];
diff --git a/super-intel.c b/super-intel.c
index a7fbed4..86dcb69 100644
--- a/super-intel.c
+++ b/super-intel.c
@@ -2183,23 +2183,39 @@ err:
 	return 1;
 }
 
-static void detail_super_imsm(struct supertype *st, char *homehost)
+static void detail_super_imsm(struct supertype *st, char *homehost,
+			      char *subarray)
 {
 	struct mdinfo info;
 	char nbuf[64];
+	struct intel_super *super = st->sb;
+	int temp_vol = super->current_vol;
+
+	if (subarray)
+		super->current_vol = strtoul(subarray, NULL, 10);
 
 	getinfo_super_imsm(st, &info, NULL);
 	fname_from_uuid(st, &info, nbuf, ':');
 	printf("\n              UUID : %s\n", nbuf + 5);
+
+	super->current_vol = temp_vol;
 }
 
-static void brief_detail_super_imsm(struct supertype *st)
+static void brief_detail_super_imsm(struct supertype *st, char *subarray)
 {
 	struct mdinfo info;
 	char nbuf[64];
+	struct intel_super *super = st->sb;
+	int temp_vol = super->current_vol;
+
+	if (subarray)
+		super->current_vol = strtoul(subarray, NULL, 10);
+
 	getinfo_super_imsm(st, &info, NULL);
 	fname_from_uuid(st, &info, nbuf, ':');
 	printf(" UUID=%s", nbuf + 5);
+
+	super->current_vol = temp_vol;
 }
 
 static int imsm_read_serial(int fd, char *devname, __u8 *serial);
diff --git a/super0.c b/super0.c
index 42989b9..6b7c0e3 100644
--- a/super0.c
+++ b/super0.c
@@ -348,7 +348,7 @@ err:
 	return 1;
 }
 
-static void detail_super0(struct supertype *st, char *homehost)
+static void detail_super0(struct supertype *st, char *homehost, char *subarray)
 {
 	mdp_super_t *sb = st->sb;
 	printf("              UUID : ");
@@ -368,7 +368,7 @@ static void detail_super0(struct supertype *st, char *homehost)
 	printf("\n            Events : %d.%d\n\n", sb->events_hi, sb->events_lo);
 }
 
-static void brief_detail_super0(struct supertype *st)
+static void brief_detail_super0(struct supertype *st, char *subarray)
 {
 	mdp_super_t *sb = st->sb;
 	printf(" UUID=");
diff --git a/super1.c b/super1.c
index b85dc20..929466d 100644
--- a/super1.c
+++ b/super1.c
@@ -833,7 +833,7 @@ err:
 	return 1;
 }
 
-static void detail_super1(struct supertype *st, char *homehost)
+static void detail_super1(struct supertype *st, char *homehost, char *subarray)
 {
 	struct mdp_superblock_1 *sb = st->sb;
 	bitmap_super_t *bms = (bitmap_super_t*)(((char*)sb) + MAX_SB_SIZE);
@@ -857,7 +857,7 @@ static void detail_super1(struct supertype *st, char *homehost)
 	       (unsigned long long)__le64_to_cpu(sb->events));
 }
 
-static void brief_detail_super1(struct supertype *st)
+static void brief_detail_super1(struct supertype *st, char *subarray)
 {
 	struct mdp_superblock_1 *sb = st->sb;
 	int i;
-- 
2.25.0